is the pr4 obd1 ecu pretty much the same as the p75 obd1 ecu. asking because i was going to get a p75 for my dx eg (d15 non vtec) that i heard from a friend that the pr4 is just about the same ecu as the p75. true/false opioins are welcome. thanks

 

and also are there any other ecus that would run the the d better. as far as take the speed limiter away and maybe more aggeresive fuel maps. thanx !!!!dont want to chip it!!!!!!

 

bump

 

An ecu not meant for the engine will not make it run better. Anyway, they ought to be the same. And there should be no speed limiter on a stock usdm ecu.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">An ecu not meant for the engine will not make it run better. Anyway, they ought to be the same. And there should be no speed limiter on a stock usdm ecu.</TD></TR></TABLE>

if there is not a speed limiter on my car than why wont it go over 115mph. and yes it does pull to 115 and hit a limiter. and your name is SVOboy shouldnt you be on a ford forum........

 

I could care less about fords, svo stands for something else...

Perhaps because you are driving a 106 bhp 1.5 liter engine is stopping you from going insanely and unsafely fast.

Even those jdm ecus that had the limiter has it set for 123mph, I believe.

 

well.....your wrong i had 3 other intergas and they all went over 145mph and the d15 doesnt make 106bhp it makes like 70 bhp but any way im done with talking to stupid people. does any one out there know the correct answer the this question????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pynikal &raquo;</TD></TR><TR><TD CLASS="quote">well.....your wrong i had 3 other intergas and they all went over 145mph and the d15 doesnt make 106bhp it makes like 70 bhp but any way im done with talking to stupid people. does any one out there know the correct answer the this question????</TD></TR></TABLE>

Since when does an integra compare to a 70bhp civic? And there are varieties of d15, by the way, if you want to say the not as common 70bhp cx engine, you should say d15b8, to be clear, because there are stock d15s that make 130hp and stock d15s that make 62 hp.

 

svoboy = RIGHT!
you = WRONG!
and im sorry that you went from a super awsome fast integra, to a 1.5 non-vtec
by the way why are u trying to go over 105 ? i would understand if you where on the track pulling 11-12 1/4 times, but i really dont think you a have a turbo or built d15 motor. so that means you want to drive over 103 on the high way right? your one of the kids that saw the fast and furious movie and said "hey that looks like fun" arnt you.... ONLY SPEED ON THE TRACK!

 

oh and by the well 70hp motor.... well that really make it to 120?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nekoabandoned &raquo;</TD></TR><TR><TD CLASS="quote">oh and by the well 70hp motor.... well that really make it to 120?</TD></TR></TABLE>

it pulls to 115 than shuts down tring to keep up with my buddies type-s on the way to vegas. and did you sell the sol yet??? and also im not one of those "kids" that do what i see in dumb movies. ive bee in the scene for about 10-12 years now.....yes im an old fart. and back to the question are they about the same ecu??? thanks

 

I told you they were the same ecu. If you don't believe me you can download the bins off pgmfi and compare them. They might be slightly different but same engine/same generation = same ecu to me.

 

the P75 has a 112mph speed limiter
the PR4 should have the same limiter but I'm not positive.

they are virtually the same ECU, swapable as long as you get the OBD1 versions.

only way around the speed limiter is to chip the ECU with a P75 map and remove it that way.

 

Did the p75 really come with a limiter? Why didn't the p72 or p28?

 

I pulled the bin from pgmfi a while back for the P75.

I have no idea why some honda ECUs got them and some didn't.
The P06/P61/P28/P07/P30-209/P09/P05 didn't, the P75/PR3/P30-203 did, the list goes on and on. (just the ones I have sitting on my hd at the momment)

 

Ah, I thought I read somewhere this was a usdm/jdm phenomenon. Silly me.

 

my dc4 has a stock p75 and ive went to 140mph..

so im guessing that they are all different